Refractory brick construction



J. B. TRACY REFRACTORY BRICK CONSTRUCTION Filed May 28, 1934 ATTORNEYSramas Apr. 14,y 193e A.

,PATENT oFFlcE aosmsc t anmo'roar Barok coNs'rnUo'rroN Jay B. Tracy,Uppernarby, Pa..

. eral lItefractor'ies Company,

`V corporation of Pcnnsy assigner to Gen- Philadelnhio. Pa., a

. Application May as. 1934, semi No. 121,850

comm. v(cinossi y Y My invention relates to refractory brickconstruction for use in cylindrical combustion cham'- bers or iireboxesand is similar to the construction shown in my co-pending applicationSerial No. 727,849 iiled of evendate.

In the construction of my co-pending application asingle shape maybeused for building a bridge wall lacross a cylindrical chamber or asingle shape may be used for lining saidchamber. In the constructionhere shown, two shapes are used instead. said shapes being complementaryand used alternately in each course. This is like` wise true in thelining shapes. In some cases this form of construction may be consideredpref-` erable over the form'in which a single shape is wd. l

'I'he invention will be more readily understood by reference to theaccompanying drawing. in which:

Fig. -1 is an elevation of a bridge wall and lining in acylindricaishell, composed of bricks as herein described;

Fig. 2 is a longitudinal sectional view;

Figs. 3 andi are enlarged views of the samev respectively; u l

Figs. 5 and 6 are perspective views of the two complementary bricks thatgo to make up a unit such as used in the bridge wall; and

Figs. 7 and 8 are perspective views of the bricks that are used incomplementary relation in lining a cylinder.

In the drawing I have shown a shell Ill, which may indicate abarrel-like combustion chamber. of a locomotive. Across this chamber Iconstruct a wail composed of the two-part units Il and I2. Each of thesetwo parts is arcuate in form in end elevation, the curvature beingselected `to conform as nearly as possible to circular chambers' of thedifl'erent slzesthat are to be accommodated. It will be noted thatbecause of the oomplernentary arcuate sides of the bricks, rather a widevariation .in curvature ofthe shell may be accommodated, any slightdiierences in the arcs of curvature of the two bodies being overcome bythe refractory plastic material used in binding the bricks in place. v AThe construction of the two bricks II-v-I'2 is identical except thatboth sides of the brick I'I are concave 'or grooved, while both thesides of the brick i2 are convex, or ribbed. Each of the bricks isformed as though the two ends lwere held and the intermediate bodyportion was displaced diagonally laterally to the extent indi-v cated.This results in the formation of recess i3 on .the bottom face and aprojection il of identhe other brick tical shape on the opposite face."Likewise, itl results inthe formation of a recess Il on one side and aprojection l of the same shape on opposite side. The ends I1-Il are',asis the body. arcuate in end view, and have arcuate recesses iQ-o attheir lateral extremities. v The brick i2 is, as stated, of duplicateconv struction except that its'sides are convex instead of concave. Ithas the same face recess 2| and on the opposite face a projection 22;the same 10 side recess 23 and on the opposite side, a projection 24.The ends with their convex extremities inter-ht with the recesses Il-dlin the brick il.

The bricks thus described form a unit. a plurality of which are used inmaking up the bridge wall shown. Each brick in the wall is interiockedwith the adjacent bricks at four points of contact therewith, thusinsuring a` rigid and permanent wall. 1. f

The bricks shown in Figs. 'I and 8 are used for the barrel lining andarefsimilar to the bricks il-I2 except that as the lining consists of,but one layer, the bricks have no provision for face to faceinterlocking. However, they are of arcuate form and provide forinterlock on four sides. That is to say, the brick 2B has its sidesconcaved or grooved as at 21-28, while the brick 26 has correspondingconvex portions or projections lill-'itily on its sides. These twobricks con- 3o stitute a unit, a plurality oi' which are used in lininga cylindrical chamber. u

In addition. each of' the bricks has a complementary rib and groove3II2438l in order to eiect an interlock when the bricks are placed inend to end relation as in the case of the lining shown. t

' Thus it will be seen that I may" erect the brick work necessary toprovide a bridge wall and a lining by the use of brick units. each unitcon- 40 sisting of two complementary parts, each brick beinginter-locked at four points with adjacent bricks. Y

I claim: p

1. In means for constructing refractory .brick work in cylindricalchambers, the combination of va plurality of brick units, each unitconsisting of fiat. arcuate. complemene@ each unit having a recessineach or its two sides. a recess on one face and so a, projection onthe diametrically'oppositc face,

of said unit having projections on its two sides, and a projection andrecess on its faces complementary to the recess and projection on theother brick 'of the unit.

two generally oblong. tary bricks, one brick of 2. In reboxconstruction, the combination two sides, a. recess on one tace and aprojection with a general circular combustion chamber of on thediametrically opposite face, the other brick a bridge wall extendingacross the same, said of said unit having projections on its two sides.wall being composed of a plurality oi brick units, and a projection andrecess on its faces com- 5 each unit being composed of two generallyobplementary to the recess and projection on the 5 long, nat, arcuate,complementary bricks, one other brick o! the units. brick oi' each unithaving a'recess in each of its JAY B. TRACY.

